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Pro-Fill Battery Watering System

Flow-Rite Pro-Fill Battery Watering System


The Pro-Fill On-Board Battery Watering System is designed for use with “golf car” style batteries commonly found in golf carts, sweepers, scrubbers, RVs, pallet jacks, and small solar systems. Based on the same technology as our industrial Millennium Plus+ valves, our Pro-Fill system is compatible with all of our Millennium water supplies.


This system works by replacing the battery's existing vent caps with valves that are interconnected with tubing, allowing the user to fill all cells of the battery from a single remote location. Each valve independently shuts off water flow to the cell when the proper electrolyte level is reached, allowing the batteries to be filled perfectly every time without having to look at the batteries.


Cost Savings

Contact Storage Battery Systems to receive your custom payback analysis showing your labor cost savings. After installing your system, you will realize other cost benefits including extended battery life, increased performance, as well as cleaner floors, equipment and battery tops.



Fill batteries without having to remove the vent covers. Avoid battery acid burns, ruined clothing, and noxious fumes. Add optional flame arrestors to prevent ignition of flammable battery cell gasses.


Extend Battery Life & Performance

A properly-watered battery lasts longer and performs better. Overfilling a battery results in loss of acid, and charging with low electrolyte levels will result in permanent damage to the lead plates. Both result in loss of capacity and life expectancy.


Time-Saving Convenience

Snap on/snap off water connections and fast filling turn the often ignored task of watering batteries into a quick, simple task allowing you to fill each battery in 30 seconds or less!





Pro-Fill™ on-board battery watering system is the only system that has been specifically designed for the golf car/utility vehicle application. The superior features include patented manifolds, standard flame arrestors, three port swivels, clampless polypropylene tubing, and easy-install winged caps.




Made in the USA

Pro-fill battery watering system



Data Sheet

Water Supplies

Part No Generator

Layout Diagrams


Docs & Videos




Pro-Fill watering system in a golf cart





Pro-Fill battery watering for golf carts and pallet jacks








view video on pro-fill battery watering system

View video on Pro-Fill Watering System